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210 lines
7.1 KiB
Text
210 lines
7.1 KiB
Text
dnl acinclude.m4 -- Extra macros needed for GNU make.
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dnl
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dnl Automake will incorporate this into its generated aclocal.m4.
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dnl ---------------------------------------------------------------------------
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dnl Got this from the lynx 2.8 distribution.
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dnl by T.E.Dickey <dickey@clark.net>
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dnl and Jim Spath <jspath@mail.bcpl.lib.md.us>
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dnl and Philippe De Muyter <phdm@macqel.be>
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dnl
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dnl Created: 1997/1/28
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dnl Updated: 1997/12/23
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dnl ---------------------------------------------------------------------------
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dnl After checking for functions in the default $LIBS, make a further check
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dnl for the functions that are netlib-related (these aren't always in the
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dnl libc, etc., and have to be handled specially because there are conflicting
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dnl and broken implementations.
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dnl Common library requirements (in order):
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dnl -lresolv -lsocket -lnsl
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dnl -lnsl -lsocket
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dnl -lsocket
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dnl -lbsd
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AC_DEFUN([CF_NETLIBS],[
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cf_test_netlibs=no
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AC_MSG_CHECKING(for network libraries)
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AC_CACHE_VAL(cf_cv_netlibs,[
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AC_MSG_RESULT(working...)
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cf_cv_netlibs=""
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cf_test_netlibs=yes
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AC_CHECK_FUNCS(gethostname,,[
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CF_RECHECK_FUNC(gethostname,nsl,cf_cv_netlibs,[
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CF_RECHECK_FUNC(gethostname,socket,cf_cv_netlibs)])])
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#
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# FIXME: sequent needs this library (i.e., -lsocket -linet -lnsl), but
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# I don't know the entrypoints - 97/7/22 TD
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AC_CHECK_LIB(inet,main,cf_cv_netlibs="-linet $cf_cv_netlibs")
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#
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if test "$ac_cv_func_lsocket" != no ; then
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AC_CHECK_FUNCS(socket,,[
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CF_RECHECK_FUNC(socket,socket,cf_cv_netlibs,[
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CF_RECHECK_FUNC(socket,bsd,cf_cv_netlibs)])])
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fi
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#
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AC_CHECK_FUNCS(gethostbyname,,[
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CF_RECHECK_FUNC(gethostbyname,nsl,cf_cv_netlibs)])
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#
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AC_CHECK_FUNCS(strcasecmp,,[
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CF_RECHECK_FUNC(strcasecmp,resolv,cf_cv_netlibs)])
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])
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LIBS="$LIBS $cf_cv_netlibs"
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test $cf_test_netlibs = no && echo "$cf_cv_netlibs" >&AC_FD_MSG
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Re-check on a function to see if we can pick it up by adding a library.
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dnl $1 = function to check
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dnl $2 = library to check in
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dnl $3 = environment to update (e.g., $LIBS)
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dnl $4 = what to do if this fails
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dnl
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dnl This uses 'unset' if the shell happens to support it, but leaves the
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dnl configuration variable set to 'unknown' if not. This is a little better
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dnl than the normal autoconf test, which gives misleading results if a test
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dnl for the function is made (e.g., with AC_CHECK_FUNC) after this macro is
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dnl used (autoconf does not distinguish between a null token and one that is
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dnl set to 'no').
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AC_DEFUN([CF_RECHECK_FUNC],[
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AC_CHECK_LIB($2,$1,[
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CF_UPPER(cf_tr_func,$1)
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AC_DEFINE_UNQUOTED(HAVE_$cf_tr_func)
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ac_cv_func_$1=yes
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$3="-l$2 [$]$3"],[
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ac_cv_func_$1=unknown
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unset ac_cv_func_$1 2>/dev/null
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$4],
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[[$]$3])
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Make an uppercase version of a variable
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dnl $1=uppercase($2)
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AC_DEFUN([CF_UPPER],
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[
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changequote(,)dnl
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$1=`echo $2 | tr '[a-z]' '[A-Z]'`
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changequote([,])dnl
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])dnl
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dnl ---------------------------------------------------------------------------
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dnl Got this from the GNU fileutils 3.16r distribution
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dnl by Paul Eggert <eggert@twinsun.com>
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dnl ---------------------------------------------------------------------------
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dnl The problem is that the default compilation flags in Solaris 2.6 won't
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dnl let programs access large files; you need to tell the compiler that
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dnl you actually want your programs to work on large files. For more
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dnl details about this brain damage please see:
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dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html
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AC_DEFUN(AC_LFS,
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[dnl
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# If available, prefer support for large files unless the user specified
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# one of the CPPFLAGS, LDFLAGS, or LIBS variables.
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AC_MSG_CHECKING(whether large file support needs explicit enabling)
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ac_getconfs=''
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ac_result=yes
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ac_set=''
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ac_shellvars='CPPFLAGS LDFLAGS LIBS'
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for ac_shellvar in $ac_shellvars; do
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case $ac_shellvar in
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CPPFLAGS) ac_lfsvar=LFS_CFLAGS ;;
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*) ac_lfsvar=LFS_$ac_shellvar ;;
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esac
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eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar
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(getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; }
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ac_getconf=`getconf $ac_lfsvar`
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ac_getconfs=$ac_getconfs$ac_getconf
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eval ac_test_$ac_shellvar=\$ac_getconf
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done
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case "$ac_result$ac_getconfs" in
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yes) ac_result=no ;;
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esac
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case "$ac_result$ac_set" in
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yes?*) ac_result="yes, but $ac_set is already set, so use its settings"
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esac
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AC_MSG_RESULT($ac_result)
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case $ac_result in
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yes)
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for ac_shellvar in $ac_shellvars; do
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eval $ac_shellvar=\$ac_test_$ac_shellvar
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done ;;
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esac
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])
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dnl ---------------------------------------------------------------------------
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dnl From Paul Eggert <eggert@twinsun.com>
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dnl Define HAVE_INTTYPES_H if <inttypes.h> exists,
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dnl doesn't clash with <sys/types.h>, and declares uintmax_t.
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AC_DEFUN(jm_AC_HEADER_INTTYPES_H,
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[
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if test x = y; then
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dnl This code is deliberately never run via ./configure.
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dnl FIXME: this is a gross hack to make autoheader put an entry
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dnl for `HAVE_INTTYPES_H' in config.h.in.
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AC_CHECK_FUNCS(INTTYPES_H)
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fi
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AC_CACHE_CHECK([for inttypes.h], jm_ac_cv_header_inttypes_h,
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[AC_TRY_COMPILE(
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[#include <sys/types.h>
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#include <inttypes.h>],
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[uintmax_t i = (uintmax_t) -1;],
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jm_ac_cv_header_inttypes_h=yes,
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jm_ac_cv_header_inttypes_h=no)])
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if test $jm_ac_cv_header_inttypes_h = yes; then
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ac_kludge=HAVE_INTTYPES_H
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AC_DEFINE_UNQUOTED($ac_kludge)
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fi
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])
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dnl ---------------------------------------------------------------------------
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dnl From Paul Eggert <eggert@twinsun.com>
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AC_DEFUN(AC_STRUCT_ST_MTIM_NSEC,
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[AC_CACHE_CHECK([for nanoseconds member of struct stat.st_mtim],
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ac_cv_struct_st_mtim_nsec,
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[ac_save_CPPFLAGS="$CPPFLAGS"
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ac_cv_struct_st_mtim_nsec=no
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# tv_nsec -- the usual case
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# _tv_nsec -- Solaris 2.6, if
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# (defined _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED == 1
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# && !defined __EXTENSIONS__)
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# st__tim.tv_nsec -- UnixWare 2.1.2
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for ac_val in tv_nsec _tv_nsec st__tim.tv_nsec; do
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CPPFLAGS="$ac_save_CPPFLAGS -DST_MTIM_NSEC=$ac_val"
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AC_TRY_COMPILE([#include <sys/types.h>
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#include <sys/stat.h>], [struct stat s; s.st_mtim.ST_MTIM_NSEC;],
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[ac_cv_struct_st_mtim_nsec=$ac_val; break])
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done
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CPPFLAGS="$ac_save_CPPFLAGS"])
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if test $ac_cv_struct_st_mtim_nsec != no; then
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AC_DEFINE_UNQUOTED(ST_MTIM_NSEC, $ac_cv_struct_st_mtim_nsec)
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fi
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]
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)
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dnl ---------------------------------------------------------------------------
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dnl From Paul Eggert <eggert@twinsun.com>
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dnl Define uintmax_t to `unsigned long' or `unsigned long long'
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dnl if <inttypes.h> does not exist.
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AC_DEFUN(jm_AC_TYPE_UINTMAX_T,
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[
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AC_REQUIRE([jm_AC_HEADER_INTTYPES_H])
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if test $jm_ac_cv_header_inttypes_h = no; then
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AC_CACHE_CHECK([for unsigned long long], ac_cv_type_unsigned_long_long,
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[AC_TRY_COMPILE([],
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[unsigned long long i = (unsigned long long) -1;],
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ac_cv_type_unsigned_long_long=yes,
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ac_cv_type_unsigned_long_long=no)])
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if test $ac_cv_type_unsigned_long_long = yes; then
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AC_DEFINE(uintmax_t, unsigned long long)
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else
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AC_DEFINE(uintmax_t, unsigned long)
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fi
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fi
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])
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